A. syafiqah Binti Juma'in, Nurul Nadia Adnan, and Ganesan Krishnan, “Third-Order Nonlinear Optical Properties of Hibiscus Sabdariffa Dye Using Z-scan Method”, EKST, vol. 4, no. 2, pp. 499–508, Dec. 2024, Accessed: Apr. 09, 2026. [Online]. Available: https://publisher.uthm.edu.my/periodicals/index.php/ekst/article/view/14893